BMW 3 Owners & Service Manuals

BMW 3: Climate Control

As in previous BMW hybrid vehicles, an electrically powered air conditioning compressor is used in the G20 PHEV. Because the A/C compressor has an electric motor, it is possible to operate the air conditioning independently of the combustion engine. Thus the customer can enjoy the cooling effect of the air conditioning even while driving in pure electric mode and while stopped.

The high-voltage battery unit is cooled by the vehicle's refrigerant's circuit.

The stationary climate control is also available in the G20 PHEV.

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 System overview

G20 PHEV, components of refrigerant circuit Combined expansion and shutoff valve (interior) Combined expansion and shutoff valve (high-voltage battery unit) High-voltage battery unit Refrig

 Electric A/C compressor

Electric A/C compressor (EKK) Signal connector Low pressure line (gaseous refrigerant at low temperature and low pressure) High-voltage connector High pressure line (gaseous refrigerant at hig

 Stationary cooling

Owing to the fact that the air conditioning compressor in the G20 PHEV is electrically operated and that the high-voltage battery unit has high energy and power densities, a stationary climate

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 Instrument cluster

Concept The instrument cluster is a variable display. When you change to a different program via Driving Dynamics Control, the displays in the instrument cluster adapt to the respective driving mode. General information The display change in the instrument cluster can be deactivated via iDrive. So

 Operating principle

If the driver adjusts a desired temperature at the IHKA controls, the IHKA calculates a corresponding nominal temperature and compares it to the actual output temperature of the electrical heating. There is a coolant temperature sensor at the electrical heating output for this purpose. This way

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